18105855311 has 2 divisors, whose sum is σ = 18105855312. Its totient is φ = 18105855310.

The previous prime is 18105855301. The next prime is 18105855401. The reversal of 18105855311 is 11355850181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18105855311 - 2¹⁸ = 18105593167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18105855301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9052927655 + 9052927656.

It is an arithmetic number, because the mean of its divisors is an integer number (9052927656).

Almost surely, 2^18105855311 is an apocalyptic number.

18105855311 is a deficient number, since it is larger than the sum of its proper divisors (1).

18105855311 is an equidigital number, since it uses as much as digits as its factorization.

18105855311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24000, while the sum is 38.

The spelling of 18105855311 in words is "eighteen billion, one hundred five million, eight hundred fifty-five thousand, three hundred eleven".